For analyzing firmware , I want to unpack the following firmware:

https://www.inmarsat.com/wp-content/uploads/2015/02/Explorer_100_110_V2-11-3.zip After unzip, I've got file named "N03_A_E_D_02_11_03.APP". Firstly, I want to unpack this file and then analyze it. I've tried some extractors, But It didn't work.

Is there any tools for unpacking and analyzing this file?

Thanks in advance

  • Try unzip first, and come back to ask a more in-depth question...
    – perror
    Commented Sep 17, 2018 at 8:30
  • After unzip, My main file is "N03_A_E_D_02_11_03.APP", At first I want to unpack it and then analyze unpacked file. I want to know some tools for doing these processes.
    – h msvi
    Commented Sep 17, 2018 at 9:49
  • file and binwalk...
    – perror
    Commented Sep 17, 2018 at 9:56
  • 1
    the ideal way is to have access to application that should create and/or unpack and apply this file. I believe it somehow should be related to Wind River Systems? :) Commented Sep 17, 2018 at 11:51
  • Hi and welcome to RE.SE. You might want to have a look at other questions with the firmware tag and also include what exactly you've been trying already. Also, your question could be better scoped.
    – 0xC0000022L
    Commented Sep 18, 2018 at 20:38

1 Answer 1


There's ARM Little endian code which starts at offset 0x8466 which seems to be a ZIP archiver code. Then from offset 0x295DF up till the end of the file, there's zlib packed block of data. After unpacking it you get a binary firmware file ~43mb, with ARM little endian code.

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